wl1271: fix endianess issues
We were not handling endianess correctly. The wl1271 chip runs on
little-endian values. This patch makes sure that all the communication with
the wl1271 firmware is done in little-endian by using cpu_to_le* and
le*_to_cpu where appropriate.
Also, all the struct definitions for data exchanged with the firmware has
been changed to use __le16/32 types instead of u16/32.
This fixes a few sparse warnings, such as these:
drivers/net/wireless/wl12xx/wl1271_cmd.c:554:42: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_cmd.c:555:42: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_cmd.c:577:58: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_cmd.c:579:58: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_cmd.c:676:18: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_cmd.c:787:22: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_cmd.c:789:21: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_tx.c:98:47: warning: incorrect type in argument 1 (different base types)
drivers/net/wireless/wl12xx/wl1271_acx.c:932:32: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_boot.c:191:32: warning: incorrect type in argument 1 (different base types)
drivers/net/wireless/wl12xx/wl1271_boot.c:197:38: warning: incorrect type in argument 1 (different base types)
drivers/net/wireless/wl12xx/wl1271_boot.c:199:37: warning: incorrect type in argument 1 (different base types)
drivers/net/wireless/wl12xx/wl1271_init.c:255:40: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1271_init.c:275:53: warning: incorrect type in assignment (different base types)
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.c b/drivers/net/wireless/wl12xx/wl1271_cmd.c
index 195eee7..0666328 100644
--- a/drivers/net/wireless/wl12xx/wl1271_cmd.c
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.c
@@ -50,7 +50,7 @@
int ret = 0;
cmd = buf;
- cmd->id = id;
+ cmd->id = cpu_to_le16(id);
cmd->status = 0;
WARN_ON(len % 4 != 0);
@@ -217,8 +217,8 @@
for (i = 0; i < ETH_ALEN; i++)
bssid[i] = wl->bssid[ETH_ALEN - i - 1];
- join->rx_config_options = wl->rx_config;
- join->rx_filter_options = wl->rx_filter;
+ join->rx_config_options = cpu_to_le32(wl->rx_config);
+ join->rx_filter_options = cpu_to_le32(wl->rx_filter);
join->bss_type = wl->bss_type;
/*
@@ -227,21 +227,22 @@
* association. The filter logic needs to be implemented properly
* and once that is done, this hack can be removed.
*/
- join->rx_config_options = 0;
- join->rx_filter_options = WL1271_DEFAULT_RX_FILTER;
+ join->rx_config_options = cpu_to_le32(0);
+ join->rx_filter_options = cpu_to_le32(WL1271_DEFAULT_RX_FILTER);
if (wl->band == IEEE80211_BAND_2GHZ)
- join->basic_rate_set =
- CONF_HW_BIT_RATE_1MBPS | CONF_HW_BIT_RATE_2MBPS |
- CONF_HW_BIT_RATE_5_5MBPS | CONF_HW_BIT_RATE_11MBPS;
+ join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_1MBPS |
+ CONF_HW_BIT_RATE_2MBPS |
+ CONF_HW_BIT_RATE_5_5MBPS |
+ CONF_HW_BIT_RATE_11MBPS);
else {
join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
- join->basic_rate_set =
- CONF_HW_BIT_RATE_6MBPS | CONF_HW_BIT_RATE_12MBPS |
- CONF_HW_BIT_RATE_24MBPS;
+ join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_6MBPS |
+ CONF_HW_BIT_RATE_12MBPS |
+ CONF_HW_BIT_RATE_24MBPS);
}
- join->beacon_interval = WL1271_DEFAULT_BEACON_INT;
+ join->beacon_interval = cpu_to_le16(WL1271_DEFAULT_BEACON_INT);
join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
join->channel = wl->channel;
@@ -305,6 +306,7 @@
if (answer) {
struct wl1271_command *cmd_answer;
+ u16 status;
/*
* The test command got in, we can read the answer.
@@ -314,10 +316,10 @@
wl1271_spi_read(wl, wl->cmd_box_addr, buf, buf_len, false);
cmd_answer = buf;
+ status = le16_to_cpu(cmd_answer->header.status);
- if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
- wl1271_error("TEST command answer error: %d",
- cmd_answer->header.status);
+ if (status != CMD_STATUS_SUCCESS)
+ wl1271_error("TEST command answer error: %d", status);
}
return 0;
@@ -338,10 +340,10 @@
wl1271_debug(DEBUG_CMD, "cmd interrogate");
- acx->id = id;
+ acx->id = cpu_to_le16(id);
/* payload length, does not include any headers */
- acx->len = len - sizeof(*acx);
+ acx->len = cpu_to_le16(len - sizeof(*acx));
ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
if (ret < 0) {
@@ -353,9 +355,9 @@
wl1271_spi_read(wl, wl->cmd_box_addr, buf, len, false);
acx = buf;
- if (acx->cmd.status != CMD_STATUS_SUCCESS)
+ if (le16_to_cpu(acx->cmd.status) != CMD_STATUS_SUCCESS)
wl1271_error("INTERROGATE command error: %d",
- acx->cmd.status);
+ le16_to_cpu(acx->cmd.status));
out:
return ret;
@@ -376,10 +378,10 @@
wl1271_debug(DEBUG_CMD, "cmd configure");
- acx->id = id;
+ acx->id = cpu_to_le16(id);
/* payload length, does not include any headers */
- acx->len = len - sizeof(*acx);
+ acx->len = cpu_to_le16(len - sizeof(*acx));
ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len);
if (ret < 0) {
@@ -463,7 +465,7 @@
ps_params->send_null_data = 1;
ps_params->retries = 5;
ps_params->hang_over_period = 128;
- ps_params->null_data_rate = 1; /* 1 Mbps */
+ ps_params->null_data_rate = cpu_to_le32(1); /* 1 Mbps */
ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
sizeof(*ps_params));
@@ -494,8 +496,8 @@
WARN_ON(len > MAX_READ_SIZE);
len = min_t(size_t, len, MAX_READ_SIZE);
- cmd->addr = addr;
- cmd->size = len;
+ cmd->addr = cpu_to_le32(addr);
+ cmd->size = cpu_to_le32(len);
ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
if (ret < 0) {
@@ -506,9 +508,9 @@
/* the read command got in, we can now read the answer */
wl1271_spi_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd), false);
- if (cmd->header.status != CMD_STATUS_SUCCESS)
+ if (le16_to_cpu(cmd->header.status) != CMD_STATUS_SUCCESS)
wl1271_error("error in read command result: %d",
- cmd->header.status);
+ le16_to_cpu(cmd->header.status));
memcpy(answer, cmd->value, len);
@@ -559,7 +561,7 @@
scan_options |= WL1271_SCAN_OPT_PASSIVE;
if (high_prio)
scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
- params->params.scan_options = scan_options;
+ params->params.scan_options = cpu_to_le16(scan_options);
params->params.num_probe_requests = probe_requests;
/* Let the fw autodetect suitable tx_rate for probes */
@@ -643,9 +645,9 @@
wl1271_spi_read(wl, wl->cmd_box_addr, params, sizeof(*params),
false);
- if (params->header.status != CMD_STATUS_SUCCESS) {
+ if (le16_to_cpu(params->header.status) != CMD_STATUS_SUCCESS) {
wl1271_error("Scan command error: %d",
- params->header.status);
+ le16_to_cpu(params->header.status));
wl->scanning = false;
ret = -EIO;
goto out;
@@ -675,7 +677,7 @@
cmd->len = cpu_to_le16(buf_len);
cmd->template_type = template_id;
- cmd->enabled_rates = wl->conf.tx.rc_conf.enabled_rates;
+ cmd->enabled_rates = cpu_to_le32(wl->conf.tx.rc_conf.enabled_rates);
cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
@@ -858,7 +860,7 @@
}
cmd->id = id;
- cmd->key_action = KEY_SET_ID;
+ cmd->key_action = cpu_to_le16(KEY_SET_ID);
cmd->key_type = KEY_WEP;
ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
@@ -889,12 +891,12 @@
if (key_type != KEY_WEP)
memcpy(cmd->addr, addr, ETH_ALEN);
- cmd->key_action = action;
+ cmd->key_action = cpu_to_le16(action);
cmd->key_size = key_size;
cmd->key_type = key_type;
- cmd->ac_seq_num16[0] = tx_seq_16;
- cmd->ac_seq_num32[0] = tx_seq_32;
+ cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
+ cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
/* we have only one SSID profile */
cmd->ssid_profile = 0;
@@ -943,8 +945,8 @@
goto out;
}
- cmd->rx_config_options = wl->rx_config;
- cmd->rx_filter_options = wl->rx_filter;
+ cmd->rx_config_options = cpu_to_le32(wl->rx_config);
+ cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
/* disconnect reason is not used in immediate disconnections */
cmd->type = DISCONNECT_IMMEDIATE;